| Date | Fri, 29 Sep 2023 07:58:23 -0700 | Subject | Re: [PATCH 00/21] block atomic writes | From | Bart Van Assche <> |
| |
On 9/29/23 03:27, John Garry wrote: > The atomic writes feature requires dedicated HW support, like > SCSI WRITE_ATOMIC_16 command.
This is not correct. Log-structured filesystems can implement atomic writes without support for atomic writes in the block device(s) used by the filesystem. See also the F2FS_IOC_*_ATOMIC_WRITE ioctls. This being said, I hope that atomic write support will be added in the block layer and also that a single interface will be supported by all filesystems.
Thanks,
Bart.
|